This is where, even for somebody like me who tries to remain entirely impartial, the bias of ridden rides vs not ridden rides inevitably begins to show.
I think Wildfire looks like the most exciting coaster in this entire poll and I would love to experience it. Buuuuut i not only haven't ridden it but i haven't ridden any RMC coasters whatsoever which I can use for reference. They are such a unique coaster type that realistically I have absolutely no concrete idea what I will think to it.
By contrast I know that Shambhala is consistently amazing from start to finish, packed full of airtime and an all round terrific ride.
I've played it safe and voted for Shambhala, but I can't wait to experience an RMC coaster so I can judge Wildfire more fairly.